Magnetic resonance imaging (MRI) compatible ultrasound therapeutic system

Takashi Azuma; Kazuaki Sasaki; Ken Ichi Kawabata; Akiko Osada; Hiroyuki Itagaki; Kazumi Komura; Tetsuhiko Takahashi; Kazunari Ishida; Yutaka Satoh; Shin Ichiro Umemura

doi:10.1143/jjap.41.3579

Magnetic resonance imaging (MRI) compatible ultrasound therapeutic system

Takashi Azuma, Kazuaki Sasaki, Ken Ichi Kawabata, Akiko Osada, Hiroyuki Itagaki, Kazumi Komura, Tetsuhiko Takahashi, Kazunari Ishida, Yutaka Satoh, Shin Ichiro Umemura

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Since an ultrasound (US) imaging system can image in real-time and interactively, it can be used as an image guidance assisting magnetic resonance imaging (MRI) for minimally invasive therapy. The effects of MRI-compatible US probes on MRI monitoring were evaluated, and it was found that the MRI-compatible US probes, whose backing material contained 100 ppm ferrite, did not disturb MR monitoring except at a few mm radius from the US probe's position. MRI temperature monitoring of a swine liver irradiated with a high-intensity focused US beam from an MRI-compatible therapeutic transducer with US image guidance was then performed, and the potential usefulness of such a therapeutic system in minimally invasive therapy was demonstrated.

Original language	English
Pages (from-to)	3579-3584
Number of pages	6
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	41
Issue number	5 B
DOIs	https://doi.org/10.1143/jjap.41.3579
Publication status	Published - 2002 May
Externally published	Yes

Keywords

HIFU
MRI compatible
Minimally invasive therapy
Temperature mapping

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/jjap.41.3579

Cite this

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title = "Magnetic resonance imaging (MRI) compatible ultrasound therapeutic system",

abstract = "Since an ultrasound (US) imaging system can image in real-time and interactively, it can be used as an image guidance assisting magnetic resonance imaging (MRI) for minimally invasive therapy. The effects of MRI-compatible US probes on MRI monitoring were evaluated, and it was found that the MRI-compatible US probes, whose backing material contained 100 ppm ferrite, did not disturb MR monitoring except at a few mm radius from the US probe's position. MRI temperature monitoring of a swine liver irradiated with a high-intensity focused US beam from an MRI-compatible therapeutic transducer with US image guidance was then performed, and the potential usefulness of such a therapeutic system in minimally invasive therapy was demonstrated.",

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author = "Takashi Azuma and Kazuaki Sasaki and Kawabata, {Ken Ichi} and Akiko Osada and Hiroyuki Itagaki and Kazumi Komura and Tetsuhiko Takahashi and Kazunari Ishida and Yutaka Satoh and Umemura, {Shin Ichiro}",

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language = "English",

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T1 - Magnetic resonance imaging (MRI) compatible ultrasound therapeutic system

AU - Azuma, Takashi

AU - Sasaki, Kazuaki

AU - Kawabata, Ken Ichi

AU - Osada, Akiko

AU - Itagaki, Hiroyuki

AU - Komura, Kazumi

AU - Takahashi, Tetsuhiko

AU - Ishida, Kazunari

AU - Satoh, Yutaka

AU - Umemura, Shin Ichiro

PY - 2002/5

Y1 - 2002/5

N2 - Since an ultrasound (US) imaging system can image in real-time and interactively, it can be used as an image guidance assisting magnetic resonance imaging (MRI) for minimally invasive therapy. The effects of MRI-compatible US probes on MRI monitoring were evaluated, and it was found that the MRI-compatible US probes, whose backing material contained 100 ppm ferrite, did not disturb MR monitoring except at a few mm radius from the US probe's position. MRI temperature monitoring of a swine liver irradiated with a high-intensity focused US beam from an MRI-compatible therapeutic transducer with US image guidance was then performed, and the potential usefulness of such a therapeutic system in minimally invasive therapy was demonstrated.

AB - Since an ultrasound (US) imaging system can image in real-time and interactively, it can be used as an image guidance assisting magnetic resonance imaging (MRI) for minimally invasive therapy. The effects of MRI-compatible US probes on MRI monitoring were evaluated, and it was found that the MRI-compatible US probes, whose backing material contained 100 ppm ferrite, did not disturb MR monitoring except at a few mm radius from the US probe's position. MRI temperature monitoring of a swine liver irradiated with a high-intensity focused US beam from an MRI-compatible therapeutic transducer with US image guidance was then performed, and the potential usefulness of such a therapeutic system in minimally invasive therapy was demonstrated.

KW - HIFU

KW - MRI compatible

KW - Minimally invasive therapy

KW - Temperature mapping

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Magnetic resonance imaging (MRI) compatible ultrasound therapeutic system

Abstract

Keywords

ASJC Scopus subject areas

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